[clang] [NFC][analyzer] Remove the NodeBuilder from VisitArrayInitLoopExpr (PR #204354)

[Balázs Benics via cfe-commits]

https://github.com/steakhal commented:

Looks technically correct, but I'd like to see the comment reworded slightly because I had to binge to see that `clear` call.

https://github.com/llvm/llvm-project/pull/204354